Improvement in rain-water cut-offs



x J. A. Le BLANG. Rain-Water Out-Off.

No. 220,294. Patented Oct. 7,1879.

MWM

IINITED' STATES PATENT OFFICE.

J. AUGUSTE LE BLANC, OF NEW ORLEANS, LOUISIANA.

IMPROVEMENT IN RAIN-WATER CUT-OFFS.

Specification forming part of Letters Patent No. 220,294, dated October 7, 1879 application filed June 27, 1879.

To all whom. it may concern:

Be it known that I, J. AUGUSTE LE BLANO, a resident of the city of New Orleans, parish of Orleans, aud State of Louisiana, have invented a certain new and usefullmprovenient in Rain-Water Out-Offs; and I do hereby declare the following to be a full, clear, and correct description of the same, reference being had to the annexed drawings, making a part of this specification.

This invention is especially in tended for use in countries wherein the inhabitants depend mainly on rain-falls for their supply of water for drinking and household purposes, and in which the rain is conveyed from the roofs of buildings by suitable conduits to reservoirs or cisterns.

In these countries it is well known that in the dry season considerable quantities of dust and dirt accumulate on the roofs and in the gutter of the buildings, and that the same is naturally carried with the rain-into the cistern, causing the water therein to become more or less discolored and unpleasant to the taste, to say nothing of the sickness engendered by the same.

The nature of this invention consistsin anarrangement whereby the accumulations of dust and dirt are carried through the conduits and discharged outside of the cistern, the water not entering the latter receptacle until all the dirt from the roof has been discharged outside the same.

On the drawings, A represents an ordinary cistern, the top 'of which I provide with a wa tor-tight cover, B, having a side projection, O, raised flange or rim D, and outlet-pipes e c, 850. About the center of this cover is an opening, f, above which is operated a slide-valve, G, which is likewise provided with an opening corresponding in size and configuration to that in the cistern-cover. To the opposite ends of this valve wire cords h h are secured, Whereby it is made to open or close the orifice in the cover, as will be hereinafter fully described.

Above the cover, and resting on suitable legs or stands, is a rectangular box, I, with side pipe, 7c, through which the water from the roof is introduced therein, and with lower open-.

ing, L, through which the water is discharged immediately above the valve G, with less liability to displace the same than if the box were dispensed with.

The cords h h are conveyed in opposite directions through sheaves i, placed on a level with the valve. The former, h, is next run over a second sheave, m, and thence downward through a pipe, N, where it is secured to a receiving-box, O. The other cord is carried upward over a sheave, n, which operates on piv' ots at the top of a standard, P, and has secured to its end a weight, as shown at g. This weight should be sufficiently heavy to more than counterbalance the valve G and (when empty) the box 0, so that in dry seasons the valve may by reason thereof be drawn back, and thus close the opening in the cover,holding the same in said position until in a rain-fall sutficient water shall pass into the box 0 to more than balance the same, and thus draw the valve forward to a sufficient extent to fully open it, and thus permit the water contained within the rim, and all subsequently received from the roof, to pass into the cistern.

A sufficient number of discharge or overflow pipes, 0, should be connected with the cover, in order to convey off the washings of the roof before the filling of the box 0 and the consequent opening of the valve Gr.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a cistern, of a top or cover for the same, having suitable outlets arranged beyond the circumference of the cistern, whereby the accumulations of dust and other foreign matter from the roof, &c., are carried off through the said outlets and discharged outside of the cistern before the clean rain-water is admitted to the cistern proper, substantially as described.

2. The combination of a cistern, A, a top or cover, B, for the same, having a side projection, O, with escape-opening, raised flange D, outlet-pipes e, and central opening, f, and an' automatic slide-valve, G, operated substantially as described, and for the purpose set opening, outlet-pipes c, and central opening, f,

forth. an automatic slide-valve, G, and the box I, 3. The combination of a cistern, A, a top, R, with side pipe, k, and a bottom opening, L, reghaving a side projection, O, with escape-openisterin g with the opening f in the top, substaning and a central opening, f, a slide-valve, G, tially as and for the purpose set forth.

a receiving-box, O, and the cords h h, passing In testimony whereof I have hereunto signed over pulleys, and connected with the slidcmy name.

valve and receiving-box, substantially as and J. AUGTE. LE BLANU. for the purpose set forth. In presence of- 4. The combination of a cistern, A, a top, A. BARBARIN,

B, having a side projection, (J, with escape- JNO. S. CARTER. 

